[INFO] cloning repository https://github.com/NilsIrl/advent2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NilsIrl/advent2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsIrl%2Fadvent2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsIrl%2Fadvent2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfadf10771e5f721075f5fe94b9cdfd70101a4dd
[INFO] testing NilsIrl/advent2020 against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilsIrl%2Fadvent2020" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NilsIrl/advent2020 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NilsIrl/advent2020
[INFO] finished tweaking git repo https://github.com/NilsIrl/advent2020
[INFO] tweaked toml for git repo https://github.com/NilsIrl/advent2020 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/NilsIrl/advent2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aoc-runner-internal v0.1.0
[INFO] [stderr]   Downloaded aoc-runner-derive v0.3.0
[INFO] [stderr]   Downloaded aoc-runner v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017c92d3f193fa3f4a4a81dcc7092b64c975959c0045b071367c2ab939fead21
[INFO] running `Command { std: "docker" "start" "-a" "017c92d3f193fa3f4a4a81dcc7092b64c975959c0045b071367c2ab939fead21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017c92d3f193fa3f4a4a81dcc7092b64c975959c0045b071367c2ab939fead21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017c92d3f193fa3f4a4a81dcc7092b64c975959c0045b071367c2ab939fead21", kill_on_drop: false }`
[INFO] [stdout] 017c92d3f193fa3f4a4a81dcc7092b64c975959c0045b071367c2ab939fead21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c38f18477e3e301268d4ef689f85ca3844fac5ecdc3474aaaf544c8c28e77e8a
[INFO] running `Command { std: "docker" "start" "-a" "c38f18477e3e301268d4ef689f85ca3844fac5ecdc3474aaaf544c8c28e77e8a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling aoc-runner-internal v0.1.0
[INFO] [stderr]    Compiling aoc-runner-derive v0.3.0
[INFO] [stderr]    Compiling advent2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | aoc_runner_derive::aoc_lib! { year = 2020 }
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: failed to write infos from lib: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day1.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[aoc(day1, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day1.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[aoc(day1, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day3.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[aoc(day3, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day3.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[aoc(day3, part1, func)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day3.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[aoc(day3, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day4.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[aoc(day4, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day4.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[aoc(day4, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day5.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[aoc(day5, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day5.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[aoc(day5, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day6.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[aoc(day6, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day6.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[aoc(day6, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day7.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[aoc(day7, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day7.rs:83:1
[INFO] [stdout]    |
[INFO] [stdout] 83 | #[aoc(day7, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day8.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[aoc(day8, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day8.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[aoc(day8, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day9.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[aoc(day9, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day9.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[aoc(day9, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day10.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[aoc(day10, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day10.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | #[aoc(day10, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day11.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | #[aoc(day11, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]    --> src/day11.rs:147:1
[INFO] [stdout]     |
[INFO] [stdout] 147 | #[aoc(day11, part2)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day12.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | #[aoc(day12, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day12.rs:91:1
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[aoc(day12, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]  --> src/day13.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[aoc(day13, part1)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day13.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[aoc(day13, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day14.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[aoc(day14, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day14.rs:38:1
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[aoc(day14, part1, vec)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day14.rs:70:1
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[aoc(day14, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day15.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[aoc(day15, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day15.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[aoc(day15, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day16.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | #[aoc(day16, part1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate`
[INFO] [stdout]   --> src/day16.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[aoc(day16, part2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ no `Factory` in the root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `aoc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_split_once, destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 34 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent2020` due to 35 previous errors
[INFO] running `Command { std: "docker" "inspect" "c38f18477e3e301268d4ef689f85ca3844fac5ecdc3474aaaf544c8c28e77e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38f18477e3e301268d4ef689f85ca3844fac5ecdc3474aaaf544c8c28e77e8a", kill_on_drop: false }`
[INFO] [stdout] c38f18477e3e301268d4ef689f85ca3844fac5ecdc3474aaaf544c8c28e77e8a
